Effect of the feeding system on the fatty acid composition, expression of the Delta9-desaturase, Peroxisome Proliferator-Activated Receptor Alpha, Gamma, and Sterol Regulatory Element Binding Protein 1 genes in the semitendinous muscle of light lambs of the Rasa Aragonesa breed.

BMC Veterinary Research
E DervishiJ H Calvo

Abstract

Conjugated linoleic acids (CLAs) are receiving increasing attention because of their beneficial effects on human health, with milk and meat products derived from ruminants as important sources of CLA in the human diet. SCD gene is responsible for some of the variation in CLA concentration in adipose tissues, and PPARgamma, PPARalpha and SREBP1 genes are regulator of SCD gene. The aim of this work was to evaluate the effect of the feeding system on fatty acid composition, CLA content and relative gene expression of Delta9-desaturase (SCD), Peroxisome Proliferator-Activated Receptor Gamma (PPARgamma), Peroxisome Proliferator-Activated Receptor Alpha, (PPARalpha) and Sterol Regulatory Element Binding Protein (SREBP1) in Rasa Aragonesa light lambs in semitendinous muscle. Forty-four single-born male lambs were used to evaluate the effect of the feeding system, varying on an intensity gradient according to the use of concentrates: 1. grazing alfalfa, 2. grazing alfalfa with a supplement for lambs, 3. indoor lambs with grazing ewes and 4. drylot. Both grazing systems resulted in a higher concentration of vaccenic acid (VA), CLA, CLA/VA acid ratio, and a lower oleic content, oleic acid (C18:1)/stearic acid (C18:0) ratio, PUFA n-6/n-3 ...Continue Reading

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Citations

Sep 25, 2012·BMC Veterinary Research·Jaber LyahyaiInmaculada Martín-Burriel
Aug 13, 2011·Journal of Animal Physiology and Animal Nutrition·J Alvarez-RodríguezM Joy
Jun 15, 2016·International Journal of Molecular Sciences·Marcio M LadeiraPriscilla D Teixeira
Mar 27, 2020·Animals : an Open Access Journal From MDPI·Katarina BudimirMaria Federica Trombetta
May 1, 2015·Comprehensive Reviews in Food Science and Food Safety·Tharcilla Isabella Rodrigues Costa AlvarengaDavid L Hopkins

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Methods Mentioned

BETA
PCR

Software Mentioned

Implen
SPSS
geNorm
BLAST
Primer3

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